1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27103efefd32867d60beb6141426f31ed5c6ac57c76b15fa0d0d52e9740cb804. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d0ac3ad-f177-4154-9921-32ee186f0ed2.json and https://artists.proofprofile.net/proofs/artist/8d0ac3ad-f177-4154-9921-32ee186f0ed2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0896a28af1b31392e79236e03cdc0e9aa7377764c68b3b0a1d4e732fe49edf. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T16:01:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKD251017305.
你不會懂 (電視劇集《動物系戀人啊》片尾特別指定曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650acb8c6fadaa4f5dd459d99b4e6f42d34c16ab2edc7c11843775facbcf707d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKD252200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c556e5cb17b50be83c80d7f5745276e7cb02f65297de11e7c7cda0a9ea2278. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762313460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51d18669698ef0c5b1dbf4a65174c4b03e422d2d37f7b947c92389120d06265. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKD250515205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff130166bca1cd0c643f9a2b8d9c70f7b5cd054688efa4621ad74bec6e3b8cc. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX452340697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1abac1bbb68c29381cd715fba9c00f3a6bd42593ff4cdf21299be1e067a895ab. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX452321203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51d18669698ef0c5b1dbf4a65174c4b03e422d2d37f7b947c92389120d06265. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKD250515205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8453ce02b03594a79428f5f43f6154be8aa961c8cfaddc73ad3cd766baf1f63. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKD251015901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa079e2805b186d3a98c68d129acd120ed34287a621e7632cab61ec36be74bd. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKD250719705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8453ce02b03594a79428f5f43f6154be8aa961c8cfaddc73ad3cd766baf1f63. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKD251015901.
英皇娛樂15週年和華麗有約澳門演唱會
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4936e2145b5ef9ae567da8c2f8ba4a98341c0cf3686b8ef4412eb4d7f379eb2. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKD251512424.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff16c4eed7fffe3f51c6c96c74c3ff9817c571b257538b43ea95f2e661eddb4d. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA052306442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ff59a519ba9a8242ad93ed05194996d4bdf5863314d79a7497899af5b4dd43. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKD250410308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8347975f2c67d2d01c5cabb2980839f20e243f21d80ca54b3a0f99d64250aeab. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKD250318303.